I think if LVG stays for next season you will have a heart attack, you seem too emotional about it. If LVG leaves it won't bother me a bit, because it will have something to do with him not meeting expectations or not going in the right direction. The club is bigger than any one manager or player.
I think as far as targets are concerned, you are right, none of us know. The fact he has not been sacked, suggest playing outright attacking football is not one of those targets. In addition, the fact he is still here suggests, there is still confidence he is going to meet his targets. I would have expected him to have the title as target within his 3 year reign, I would also expect a minimum of CL qualification each year. A cup trophy would be nice, but doubt it will be a target. As next year is his last year, I am sure that he will want to go out with a big bang, but at the end of the day for him would it matter as he is gone anyway.
You are too critical of LVG, so when you watch a match you seem to miss the good bits. Everyone sees the bad bits (we are not blinkered). You talk as though only a few games have been good, and if we go through the threads we will see the usual but they were shit, they had an off day, we were lucky ...etc when we win. There is not a match that has been played where I have not been sitting on the edge of my seat wishing the team forward, wishing every attack has an outcome. In most cases I am shouting expletives at the players for fecking up and making stupid decisions, not LVG. Many on here hide behind the that LVG's fault, yet those same people blame the players when Jose is mentioned and Chelsea played shit.
Last year LVG chose to play players out of position, and by that I mean play a player who is only known as playing in one position into a totally new position, when players have been injured, rather than a utility player like Blind. This year, he has used CBJ at LB, rather than use a more experienced player. He also used Varela when he could have used other players. Yes, he had to look at youth because of injuries, but who is to say he would not have used them if performances were poor. He used McNair when both Young and Jones was fit. I don't agree with you that he got rid of the wrong players or too many. We have ample players in all positions bar striker. We do have however a number of under performing players, e.g. Depay.
Bringing Jose in to the current environment is likely to have minimal impact. He can't go and get any new players, he can't all of a sudden fix injuries. His only impact would be to try and play a different way to get results. It is debatable whether he would get more points than LVG this season. In fact his lack of knowledge of many players may actually go against him. Hence, it is better to stay with LVG.